Bug 207372
| Summary: | partprobe in RHEL 4 hardlocks the system | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Tom "spot" Callaway <tcallawa> |
| Component: | parted | Assignee: | David Cantrell <dcantrell> |
| Status: | CLOSED ERRATA | QA Contact: | Brock Organ <borgan> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4.0 | CC: | dkovalsk, jhrozek |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | RHBA-2007-0275 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2007-05-01 17:35:33 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Attachments: | |||
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Description
Tom "spot" Callaway
2006-09-20 20:51:40 UTC
Created attachment 136778 [details]
Strace from a partprobe run where it locks up
I asked the customer to run strace and send me the output from before it
hardlocks, this is what they sent me.
The reason that they're using partprobe is this:
When they make some of their devices "write-disabled" or "established" in EMC
terminology, then reboot, they can't see some of their device nodes. When they
"write-enable" those devices ("split" in EMC terminology), they want to be able
to see those devices again.
They were running fdisk on the devices to recover them without a reboot. I
suggested that they use partprobe instead.
Only output from running partprobe before it locks is this: rr131149@rpc9900# partprobe Warning: The disk CHS geometry (1024,1,45) does not match the geometry stored on the disk label (48,15,64). Warning: The disk CHS geometry (960,1,6) does not match the geometry stored on the disk label (6,15,64). Warning: The disk CHS geometry (1024,1,45) does not match the geometry stored on the disk label (48,15,64). Warning: The disk CHS geometry (960,1,6) does not match the geometry stored on the disk label (6,15,64). Created attachment 136779 [details]
The state of /dev before they "write-enable" some of their devices.
Created attachment 136780 [details]
The state of /dev after.
Created attachment 136781 [details]
/var/log/messages from their system
I'm unfamiliar with EMC terminology, but the word 'split' to me indicates that some sort of LUN resizing is happening. But before that, I need to know the disk label type that these volumes are using. You can run: parted /dev/whatever print And look at the 'Partition Table:' line. Actually, the whole output of that print command would be handy. Created attachment 136859 [details]
Output from parted print for all attached storage devices
I've built parted-1.8.0rc2 RPMs for RHEL-4. Can you try partprobe from 1.8.0rc2 and see where that gets you? http://people.redhat.com/dcantrel/rhel/parted/ Heard from customer that parted-1.8.0rc2 resolves the partprobe crash problem. Adding this to the RHEL 4.5 proposed list. This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. Based on the log files provided, libparted was crashing on the Sun disklabels in the EMC array. Customer verified that parted-1.8.0rc2 works fine, so backported the Sun disklabel code from that release to the RHEL-4 tree. Created attachment 147049 [details]
Sun disklabel reading code that won't lock partprobe(8)
Backport of Sun disklabel code from parted-1.8.0rc2 that fixes the problem.
Applied in parted-1.6.19-15.EL in RHEL-4.
This fix is available in the latest RHEL-4.5 Beta. If the customer is in a position to test the beta, please ask for testing feedback. Thanks. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2007-0275.html |